Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants
Dong Guo-Zhen1,2; Yang Zhi1; Zhang Zhao-Qi3; Yu Wei3; Li Jing-Wei1; He Yi3; Zhang, John X.4; Weng Xu-Chu1; J. X. Zhang; X. C. Weng
刊名PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS
2009-08-01
卷号36期号:8页码:987-993
关键词visual cortex auditory stimulation functional MRI cross-modality
ISSN号1000-3282
文献子类Article
英文摘要Sensory substitution has been reported in recent brain imaging studies with blind people and others with sensory deficits so that sensory cortical regions traditionally considered unimodal respond to stimulation from other sensory modalities. Similar effects are also found for normal sighted people with sensory deprivation (blindfolded), indicative of pre-existing neuronal pathways for multiple sensory interactions. Such pathways are considered latent in that they only become unmasked or potentiated in the event of sensory deafferentation, although whether sensory deprivation is necessary to expose these pathways is unclear due to inconclusive evidence. With a relatively strong power in experimental design, visual cortical activation was observed when normal sighted participants (not blindfolded) judged whether auditorily-presented nouns referred to artificial or natural objects. The results suggest the above mentioned pathways can be exposed without sensory deafferentation and therefore are not totally latent. This establishes a boundary condition constraining theoretical models for the neural basis of multiple sensory interactions.; Sensory substitution has been reported in recent brain imaging studies with blind people and others with sensory deficits so that sensory cortical regions traditionally considered unimodal respond to stimulation from other sensory modalities. Similar effects are also found for normal sighted people with sensory deprivation (blindfolded), indicative of pre-existing neuronal pathways for multiple sensory interactions. Such pathways are considered latent in that they only become unmasked or potentiated in the event of sensory deafferentation, although whether sensory deprivation is necessary to expose these pathways is unclear due to inconclusive evidence. With a relatively strong power in experimental design, visual cortical activation was observed when normal sighted participants (not blindfolded) judged whether auditorily-presented nouns referred to artificial or natural objects. The results suggest the above mentioned pathways can be exposed without sensory deafferentation and therefore are not totally latent. This establishes a boundary condition constraining theoretical models for the neural basis of multiple sensory interactions.
学科主题认知神经科学
语种英语
WOS记录号WOS:000269408700006
公开日期2011-08-22
内容类型期刊论文
源URL[http://ir.psych.ac.cn/handle/311026/5832]  
专题心理研究所_中国科学院心理研究所回溯数据库(1956-2010)
通讯作者J. X. Zhang; X. C. Weng
作者单位1.Chinese Acad Sci, Inst Psychol, Lab Higher Brain Funct, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Anzhen Hosp, Dept Radiol, Beijing 100029, Peoples R China
4.Chinese Univ Hong Kong, Dept Psychol, Hong Kong 260350, Hong Kong, Peoples R China
推荐引用方式
GB/T 7714
Dong Guo-Zhen,Yang Zhi,Zhang Zhao-Qi,et al. Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants[J]. PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,2009,36(8):987-993.
APA Dong Guo-Zhen.,Yang Zhi.,Zhang Zhao-Qi.,Yu Wei.,Li Jing-Wei.,...&X. C. Weng.(2009).Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants.PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS,36(8),987-993.
MLA Dong Guo-Zhen,et al."Visual Cortical Activation During Auditory Word Categorization: Evidence for Multiple Sensory Interaction From Normal Sighted Participants".PROGRESS IN BIOCHEMISTRY AND BIOPHYSICS 36.8(2009):987-993.
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